I could see the F20c foiling kit catching on, since those boats are straight line honors machines. Nacra 17 kit? No, those boats are Olympics only and even the trust fund boys know where to draw the line. Maybe for 2020.

Not an A-class owner but a potential future owner. I agree with bobs assessment. Foil foiling moths are cheaper (darn hard to sail!) and the guys trapping downwind with the C-boards and t-foils are already very quick. Plus the boats are very slippery in light air; that's a tough combination to beat. If it ain't broke don't fix it...